Electric shock - Page 2 - Electronic Circuits Projects Diagrams Free

Someone Electro · 25th October 2005, 04:32 PM

This is what four 10 000 uF 63V caps do wen discharged. It totaly blided the camera.(it also blinds you)

There you can see my hand making that sparks

Dr.EM · 25th October 2005, 04:37 PM

I don't think i'd want to be that near to it :shock: . Is it true that sparks emit a lot of UV?

Someone Electro · 25th October 2005, 05:41 PM

They emit a lot ot evryting. From IR to UV

Whith this spark you can feeal the IR light as it warms your hands.

Its also prety loud.

theinfamousbob · 26th October 2005, 01:51 AM

lol....

when i was about 7 i was helping get christmas lights ready - the testing portion. (we had a tree with over 3000 lights that had to be strung @ the time, so everyone pitched in.)so as i'm testing the lights, i go to pull the cable out of the wall, but the plastic cover comes off from the prongs (cheap manufacturing) and being the idiot child i was :lol:, i decided to pull it by the prongs. Granted, it was just running voltage thru my finger and thumb, and suprisingly, it didnt hurt...it just hummed

. I didnt get any burns and it probably convinced me to work with electronics subconciously....

60hz doesn't feel half bad, either :twisted:

Someone Electro · 26th October 2005, 05:28 AM

You probobly had dry hands.And so there ware a lot of resistance to hold it back.But if your hands ware moist you wod get a good shock.(Especialy if your in europe where we have 220-230V mains)

theinfamousbob · 26th October 2005, 10:38 PM

good point...thank goodness im on 120vac

zachtheterrible · 27th October 2005, 03:03 AM

On the 12v battery I get arcs that are actually 1-2mm. Not just sparks. If I put my finger next to one of the terminals I will even get shocked. Kind of painful too. Weird huh?

Yes, sparks emit a lot of UV. I was fiddling around with my jacob's ladder and noticed that when there was an arc, the schematics pinned up on my wall were glowing as if I had a blacklight on them :lol:

Someone Electro · 27th October 2005, 02:39 PM

An arc is wen the air gets ionised and starts conducting curent.

So to arc 2 mm you wod need about 2000V!!!That is to start the arc.And there is no way an car batery is going to do that.

So if you have 2000V the arc shot start wen the contacts are less than 2 mm a part

**Nigel Goodwin** · 27th October 2005, 03:22 PM

Quote:

Originally Posted by Someone Electro

So to arc 2 mm you wod need about 2000V!!!That is to start the arc.And there is no way an car batery is going to do that.

The arc from a car battery is when you disconnect it!, it tries to keep the current flowing, producing a small arc. This happens with switches and relay contacts as well, and is why they have a higher AC current rating than their DC one (because with AC the spark will automatically stop as the current falls to zero).

BTW, the value I've always used is 10,000V per cm (which is the same thing obviously), but this is in dry air - in damp air it takes considerably less.

madmikejt12 · 4th November 2005, 07:21 AM

ive been electricuted from a telephone wire in the house, i was fixing it for my nan and i got a shock and jumped off the ladder, it felt quite good actualy :lol: my finger was damp at the time....
does anyone know what voltage they are in the uk? (indoor telephone wire)

Someone Electro · 4th November 2005, 07:42 AM

Someome has probobly called you.Becose to make the tlephone ring a high volatge is sen along the line.

I dont know exsactly what volatge .It is its soemware betwen 40-90 V

**Jay.slovak** · 4th November 2005, 08:07 AM

It should be arround 48V.
I got electricuted by telephone wires too, it has a lot of juice :lol:
I respect them since then.

akg · 4th November 2005, 09:28 AM

normal telephone line voltage is 48-52v DC but during ring it will go around 75v AC .. that's when ur hair responds :lol:

Someone Electro · 4th November 2005, 10:13 AM

I heard that an dogs chain got someohow shorted on the telephone line and broke conection whith the telephone.So wen the phone shod ring the dog started barking.And wen he pead then the dog got a beter conecton whith the ground and the telephone got enugh curent to ring.So they ware them wondring why dose the dog bark befor the telephone rings.And soemitnes it dosent ring.

Dr.EM · 4th November 2005, 08:03 PM

I've heard that story before, almost forgotten about it though :lol:

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25th October 2005, 04:37 PM	(permalink)
Dr.EM	I don't think i'd want to be that near to it :shock: . Is it true that sparks emit a lot of UV? __________________ Angry!? I'm absolutely electrolytic! Will have to make do with myspace now I guess...

25th October 2005, 05:41 PM	(permalink)
Someone Electro	They emit a lot ot evryting. From IR to UV Whith this spark you can feeal the IR light as it warms your hands. Its also prety loud. __________________ Il give you shocking experience.

26th October 2005, 01:51 AM	(permalink)
theinfamousbob	lol.... when i was about 7 i was helping get christmas lights ready - the testing portion. (we had a tree with over 3000 lights that had to be strung @ the time, so everyone pitched in.)so as i'm testing the lights, i go to pull the cable out of the wall, but the plastic cover comes off from the prongs (cheap manufacturing) and being the idiot child i was :lol:, i decided to pull it by the prongs. Granted, it was just running voltage thru my finger and thumb, and suprisingly, it didnt hurt...it just hummed . I didnt get any burns and it probably convinced me to work with electronics subconciously.... 60hz doesn't feel half bad, either :twisted: __________________ -Ian

26th October 2005, 05:28 AM	(permalink)
Someone Electro	You probobly had dry hands.And so there ware a lot of resistance to hold it back.But if your hands ware moist you wod get a good shock.(Especialy if your in europe where we have 220-230V mains) __________________ Il give you shocking experience.

26th October 2005, 10:38 PM	(permalink)
theinfamousbob	good point...thank goodness im on 120vac __________________ -Ian

27th October 2005, 03:03 AM	(permalink)
zachtheterrible	On the 12v battery I get arcs that are actually 1-2mm. Not just sparks. If I put my finger next to one of the terminals I will even get shocked. Kind of painful too. Weird huh? Yes, sparks emit a lot of UV. I was fiddling around with my jacob's ladder and noticed that when there was an arc, the schematics pinned up on my wall were glowing as if I had a blacklight on them :lol: __________________ I'm no electronics god, i just talk too much.

27th October 2005, 02:39 PM	(permalink)
Someone Electro	An arc is wen the air gets ionised and starts conducting curent. So to arc 2 mm you wod need about 2000V!!!That is to start the arc.And there is no way an car batery is going to do that. So if you have 2000V the arc shot start wen the contacts are less than 2 mm a part __________________ Il give you shocking experience.

4th November 2005, 07:21 AM	(permalink)
madmikejt12	ive been electricuted from a telephone wire in the house, i was fixing it for my nan and i got a shock and jumped off the ladder, it felt quite good actualy :lol: my finger was damp at the time.... does anyone know what voltage they are in the uk? (indoor telephone wire)

4th November 2005, 07:42 AM	(permalink)
Someone Electro	Someome has probobly called you.Becose to make the tlephone ring a high volatge is sen along the line. I dont know exsactly what volatge .It is its soemware betwen 40-90 V __________________ Il give you shocking experience.

4th November 2005, 08:07 AM	(permalink)
Jay.slovak	It should be arround 48V. I got electricuted by telephone wires too, it has a lot of juice :lol: I respect them since then. __________________ "I share, thus I am" Jay.slovak Read this! ICD2 Clone Best PIC/DsPIC Bootloader Read my Inchworm ICD2 review!

4th November 2005, 09:28 AM	(permalink)
akg	normal telephone line voltage is 48-52v DC but during ring it will go around 75v AC .. that's when ur hair responds :lol:

4th November 2005, 10:13 AM	(permalink)
Someone Electro	I heard that an dogs chain got someohow shorted on the telephone line and broke conection whith the telephone.So wen the phone shod ring the dog started barking.And wen he pead then the dog got a beter conecton whith the ground and the telephone got enugh curent to ring.So they ware them wondring why dose the dog bark befor the telephone rings.And soemitnes it dosent ring. __________________ Il give you shocking experience.

4th November 2005, 08:03 PM	(permalink)
Dr.EM	I've heard that story before, almost forgotten about it though :lol: __________________ Angry!? I'm absolutely electrolytic! Will have to make do with myspace now I guess...